Narrative:

A pre-coordinated flight of foreign air force aircraft were supposed to transition our airspace. All precoordination went out the window when the lead aircraft; aircraft X; and his trailing flight would not fly the flight plan route due to weather. Their 'preferred' route of flight took them under an active arrival descent corridor and under an active holding pattern. Aircraft X would not turn and therefore could not climb.aircraft X advised me that they had lost contact with an aircraft; aircraft Y; in the flight and requested a transponder code and help in reestablishing contact with the flight. I issued a beacon code but did not receive acknowledgement for several transmissions. When radio contact was finally established with the aircraft Y I attempted to assist in rejoining the flight. Due to language problems and the fact that I had no transponder codes for the other aircraft in the flight; I had no way to ascertain a safe altitude to climb aircraft Y to rejoin. This was all compounded by aircraft Y refusing control instructions and not having clear communication. Coordination with surrounding ATC facilities was accomplished. The flight was eventually worked by another sector which was not the sector that was supposed to receive this flight of aircraft.this flight of aircraft were not given to TRACON in anything close to the precoordinated conditions and should never have been allowed to begin this flight plan if they if the weather would affect the establishment of a normal flight of aircraft. TRACON is in a very tight airspace restricted area with little room to maneuver aircraft to accommodate deviations in such a large way from precoordinated flight plans.

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Original NASA ASRS Text

Title: A flight of foreign military aircraft would not fly their pre-coordinated route due to weather. One of the aircraft in the flight got lost and ATC assisted it in rejoining the flight.

Narrative: A pre-coordinated flight of foreign Air Force aircraft were supposed to transition our airspace. All precoordination went out the window when the lead aircraft; Aircraft X; and his trailing flight would not fly the flight plan route due to weather. Their 'preferred' route of flight took them under an active arrival descent corridor and under an active holding pattern. Aircraft X would not turn and therefore could not climb.Aircraft X advised me that they had lost contact with an aircraft; Aircraft Y; in the flight and requested a transponder code and help in reestablishing contact with the flight. I issued a beacon code but did not receive acknowledgement for several transmissions. When radio contact was finally established with the Aircraft Y I attempted to assist in rejoining the flight. Due to language problems and the fact that I had no transponder codes for the other aircraft in the flight; I had no way to ascertain a safe altitude to climb Aircraft Y to rejoin. This was all compounded by Aircraft Y refusing control instructions and not having clear communication. Coordination with surrounding ATC facilities was accomplished. The flight was eventually worked by another sector which was not the sector that was supposed to receive this flight of aircraft.This flight of aircraft were not given to TRACON in anything close to the precoordinated conditions and should never have been allowed to begin this flight plan if they if the weather would affect the establishment of a normal flight of aircraft. TRACON is in a very tight airspace restricted area with little room to maneuver aircraft to accommodate deviations in such a large way from precoordinated flight plans.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.